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Questions in computers-and-technology

[Done] PLCs can communicate with other devices. A. True B. False

[Done] GPS stands for A. Geographic B. Global C. Geologic D. Guidance Positioning System.

[Done] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Done] Perry has volunteered to be a tester for a new application that is being developed at his local community college. Some errors in the interfaces of the system are subtle and not noticeable when parts of the system are tested. What type of testing is required to detect these errors? A. big-bang testing B. top-down testing C. acceptance testing D. non-functional testing E. beta testing

[Done] What is a White Hat hacker? A. A computer hacker who sometimes violates laws or typical ethical standards B. A hacker who breaks into a computer system with malicious intent C. An ethical computer hacker D. None of the above

[Done] How does the use of effective search terms enhance the quality of online research?

[Done] Define metadata and explain its role in database management. Discuss the benefits of using DBMS in managing large volumes of organizational data.

[Done] What is the difference between spyware and adware? A. Spyware does not require express permission whereas adware usually does. B. Adware is downloaded with other programs whereas spyware is not. C. Adware puts advertisements on your computer whereas spyware does not. D. Both A and B are correct.

[Done] Which protocol functions at the transport layer of the OSI model? A. TLS B. IP C. UDP D. Wi-Fi

[Done] How can a teacher use MS Excel to improve learner assessment tracking? Propose a step-by-step method. A. Manually using formula to calculate and write grades in a notebook B. Creating formulas to calculate weighted averages and generate letter grades C. Printing blank templates for learners to fill D. Using Excel only for attendance learners